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UNCOUPLING MEMBRANE (Pallet 36 qty) Gray Thinset/Medium Bed Tile Mortar (50-lb)

Ratings & Reviews for MAPEI UNCOUPLING MEMBRANE (Pallet 36 qty) Gray Thinset/Medium Bed Tile Mortar (50-lb)

4.6
120
Review
 4.6 out of 5
120 Reviews


92% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The thinset provides strong adhesion and works well with uncoupling membranes. It is easy to mix and apply, though some users note it can set up quickly. While a few had issues with adhesion, most reviewers are satisfied with the product's performance and value.

Customer review summary generated by AI, including incentivized reviews.
120 Customer Reviews

Easy to mix on your own!

Would Recommend

Used with uncoupling membrane. Worked well and was easy to mix

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Mortor

Would Recommend

I love this product.. not expensive and really worth the money

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Walk-in shower project lots of different types

Would Recommend

I’m doing a walk-in shower and used the uncoupled version for the water proof membrane

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Uncoupling

Would Recommend

This is one of those products that you use and don’t even think about it cause it is just so needed.

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Deceitful Product Name

Would Not Recommend

It's called "Uncoupling Membrane Thinset". I mean, that's what it says in huge letters all over the bag. BUT if you are trying to install Mapeguard um 35 on a plywood subfloor (which is extremely common!), you can't use this product alone! No! You have to spend twice as much on a liquid additive to turn this dry bag of thinset into polymer modified thinset. What a pain and a huge expense! You've got to be kidding! Why even make this product? Why do manufacturers have to over complicate things? A...

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Response from MAPEI

Hello,
We are sorry for your disappointment, but unmodified mortars can be used over concrete to install uncoupling membranes. If the substrate ...

MAPEIMarch 5, 2026

MAPEITechnicalServices

Works great with the membrane

Would Recommend

Used this with the membrane from Mapei. Worked really well. Highly recommend the combo.

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follow instructions

Perfect when using the uncoupling membrane material

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Did the job

Would Recommend

Good instructions and easy to mix. I would recommend!

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Mortar that holds and is easy to use

Would Recommend

This mortar is easy to mix, apply, and goes down nicely.

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Unsanded which is whats needed for membrane instal

Would Recommend

Good stuff for membrane shower install

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Worth the extra money

Would Recommend

Upgrading to this from the standard brand name HD thin-set to lay 12x24 tile is worth every penny, with minimal sag and a good consistency when using the minimum amount of water. It applies perfectly to bare, clean concrete with plenty of time to get through an entire bag before clumping up.

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Great bonding to concrete sub floor

Would Recommend

Very good product

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Good Product

Would Recommend

So far so good, price was reasonable, but would've liked a smaller bag. Easy to mix and good consistency.

December 22, 2024
From Uncoupling Membrane Gray Thinset_SLASH_Medium bed Tile Mortar ( 50 Pound(s) ) Verified Purchaser
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Works

Would Recommend

The product was perfect, It did exactly what it was supposed to. It mixed well and it held the tiles in place. Not a lot else to say. The only problem was I bought it online to pick up at the store and who ever filled the order selected a bag with a hole in it so I have dried thinset in the back of my SUV.

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